Merge pull request #1090 from gabrielalmir10/patch-2

Update free-podcasts-screencasts-en.md

free-podcasts-screencasts-en.md

 ### Index
+* [Javascript](#javascript)
 * [Python](#python)
 * [Ruby](#ruby)
 
+### Javascript
+* [Screencast] - [ShowMeDo - Javascript Screencasts](http://showmedo.com/videotutorials/javascript)
+* [Screencast] - [Free Quality Javascript video tutorials and screencasts](http://screencasts.org/topics/javascript)
+* [Screencast] - [Node Tuts - Node.JS Video Tutorials](nodetuts.com)
+
 ### Python
 * [Screencast] - [ShowMeDo - Python Videos, Tutorials and Screencasts](http://showmedo.com/videotutorials/python)
 * [Screencast] - [Diving into Django](http://code.tutsplus.com/articles/diving-into-django--net-2969)
@@ -11,3 +17,7 @@
 * [Podcast] - [5by5 - Ruby on Rails Podcast](http://5by5.tv/rubyonrails)
 * [Podcast] - [ENVY LABS - Ruby5](http://ruby5.envylabs.com/)
 * [Podcast] - [Ruby Rogues](http://rubyrogues.com/)
+* [Screencast] - [Free Ruby on Rails Screencasts](http://railscasts.com/?type=free)
+* [Screencast] - [Ruby Videos, Tutorials and Screencasts](http://showmedo.com/videotutorials/ruby)
+* [Screencast] - [Ruby Tapas | Free Screencasts](http://www.rubytapas.com/episodes?filter=free)
+* [Podcast] - [The Ruby Show](http://rubyshow.com/)